. Bulletin of the British Museum (Natural History), Geology. . Fig. 4. I, Orthochetus tectiformis (Binkhorst), Cretaceous, (Maastrichtian), Limbourg Netherlands. Xi-3. 2, Orthochetus hantoniensis sp. Cretaceous (Aptian). Atherfield, Isle of Wight. X3-3. 3, Orthochetus leufroyi; (Michelin in Deshayes 1833). Eocene. Chaumont, France. Type species. xo-6. 4, Orthochetus charlesworthi (Prestwich), Eocene, London Clay. Sheppey, Kent. Xo-6. ^, Orthochetus mapeulensis Douville. Cretaceous, (Maastrichtian). Louristan, S. Persia. Xi-3. 6, Orthochetus^ elongatus Wrigley. Eocene, London Clay, Sheppe
. Bulletin of the British Museum (Natural History), Geology. . Fig. 4. I, Orthochetus tectiformis (Binkhorst), Cretaceous, (Maastrichtian), Limbourg Netherlands. Xi-3. 2, Orthochetus hantoniensis sp. Cretaceous (Aptian). Atherfield, Isle of Wight. X3-3. 3, Orthochetus leufroyi; (Michelin in Deshayes 1833). Eocene. Chaumont, France. Type species. xo-6. 4, Orthochetus charlesworthi (Prestwich), Eocene, London Clay. Sheppey, Kent. Xo-6. ^, Orthochetus mapeulensis Douville. Cretaceous, (Maastrichtian). Louristan, S. Persia. Xi-3. 6, Orthochetus^ elongatus Wrigley. Eocene, London Clay, Sheppey. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original British Museum (Natural History). London : BM(NH)
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